Is it for a 410E based custom board ? If this is for FCC compliance test (conducted, radiated), you need to switch the wcn3620 in a specific mode to continuously emit on various frequencies/modulations. Usually you need to have to load a different firmware or send a special test command to the existing firmware. I personally don’t know how to do that but I suppose Arrow could help on this.
For sure, DB410C has been tested and complies to the FCC rules: